Just installed Hedman elites on a 401.
On the the driver side I only had to unbolt the upper portion of the steering shaft and zip tie it out of the way. No need to mess with the mechanical clutch linkage.
On the passenger side I had to remove the starter.
Please excuse the pics, the jeep is still a work in progress (when isn't it).
I used stage 8 fasteners to prevent loosening.

My original plan was to use my stock manifolds, and have them "extrude honed" for better flow. I was gonna do the intake/heads & Manis. Unfortunately, I have yet to win the Lottery! http://boneheadperformance.com/extru...-hone-pricing/
This is about the average price. I went w/Pacesetter headers. The kit did not have all the bolts, however they did overnight a complete set, overnight, gratis! I had to run a mini starter. and still had a tight fit on the passenger side, rear cylinder. I didn't have to crush/squeeze or do anything to impede the flow, just a PITA to mount.
If there is a part that is manufactured slightly out of tolerance, it is shipped directly to ME!

I've also learned that sometimes... when people don't agree with you .... its best to hold them down and kidney punch them till they agree with you